Philips Trim 1 Service Manual

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Chapter 1Introduction
This PageWriter Trim I, II, III, Rx Cardiograph Service Manual provides the information you 
need to successfully service the PageWriter Trim cardiographs with software version A.01.03 
and higher. The PageWriter Trim Cardiograph product family includes the following four 
product models as described in Table 1-1.
This Service Manual includes information on:
„Theory of operation
„Maintenance procedures
„Performance verification and safety testing
„Repairs
„Ordering parts and...

IntroductionWho Should Use this Manual
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Who Should Use this Manual 
This manual is intended for users who handle preventive maintenance, periodic operational 
checks, and basic troubleshooting for PageWriter Trim cardiographs.
Before attempting to service the cardiographs, you must review the following documentation 
and training materials:
„PageWriter Trim Instructions for Use 
„PageWriter Trim Cardiograph Interactive Training Program
„This Service Manual...

IntroductionSafety Summary
PageWriter Trim Cardiograph Service Manual1-3
Safety Summary
Safety Symbols Marked on the Cardiograph 
Symbol
Name Description
 Attention See PageWriter Trim Instructions for Use for 
information.
  Type CF ECG physio isolation is type CF, defibrillator proof. 
Electrical leakage current is suitable for all patient 
applications including direct cardiac application. 
  Alternating current Indicates that the cardiograph is receiving alternating 
currents.
On/Standby Pressing the...

IntroductionSafety Summary
1-4PageWriter Trim Cardiograph Service Manual
Global Medical Device 
Nomenclature CodeGlobal Medical Device Nomenclature Code is a 5-digit 
code providing a brief description of the device, as 
defined by EN ISO 15225.
Safety Symbols Marked on the Cardiograph (continued)
Symbol
Name Description
Safety Symbols Marked on the Cardiograph Packaging 
Symbol Description
 Keep dry.
Ambient temperature range of 0 
oC (32o.F) to 50 oC (122o F) (non-condensing) for 
transport and...

IntroductionImportant Patient and Safety Information
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Important Patient and Safety Information
The PageWriter Trim cardiograph isolates all connections to the patient from electrical ground 
and all other conductive circuits in the cardiograph. This reduces the possibility of hazardous 
currents passing from the cardiograph through the patient’s heart to ground, and from other 
equipment connected to the patient passing through the leads into the cardiograph...

IntroductionImportant Patient and Safety Information
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WARNINGThe Welsh bulb electrodes (available as an accessory for the cardiograph) do not meet 
the requirements of IEC 60601-2-25 for defibrillation recovery time, and cannot be 
reliably used for immediate patient diagnosis following defibrillation.
WARNINGThe PageWriter Trim I cardiograph is not recommended for diagnostic cardiograph use 
during defibrillation. It does not provide real-time data in less...

IntroductionImportant Patient and Safety Information
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„The use of equipment that applies high frequency voltages to the patient (including 
electrosurgical equipment and some respiration transducers) is not supported and may 
produce undesired results. Disconnect the patient data cable from the cardiograph, or detach 
the leads from the patient prior to performing any procedure that uses high frequency 
surgical equipment. 
„Do not perform ST analysis on the...

IntroductionImportant Patient and Safety Information
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„Portable medical equipment such as X-rays and MRI may produce electromagnetic 
interference that produces noise in the ECG signal. Move the cardiograph away from these 
potential sources of electromagnetic interference.
„Do not pull on the paper while an ECG report is being printed. This can cause distortion of 
the waveform and can lead to potential misdiagnosis.
„Only use the Philips Medical Systems AC...

IntroductionThe PageWriter Trim Cardiograph
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„The combined maximum weight that can be placed on the cardiograph cart shelf and the top 
surface of the cart cannot exceed 20 kg (44 lbs). Do not place more than the specified 
weight on the cardiograph top surface and shelf. 
„Do not connect any device to the RS-232 port on the rear of the cardiograph when the 
patient data cable is connected to a patient.
„There are no cardiograph parts that can be sterilized....

IntroductionThe Philips 12-Lead Algorithm
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Indications for Use
The cardiograph is to be used where the clinician decides to evaluate the electrocardiogram of 
adult and pediatric patients as part of decisions regarding possible diagnosis, potential 
treatment, effectiveness of treatment, or to rule out causes for symptoms.
The Philips 12-Lead Algorithm 
The PageWriter Trim Cardiograph software uses the Philips 12-Lead Algorithm. The 
algorithm in the software...